Tuesday, January 1, 2013

Here he illustrates the phases of the moon as explained by a shadow cast by the sun (on the right). The text is in Persian and was written in the late 900s/early 1000s.

From al-Biruni's book "Kitab al-Tafhim".

Here he illustrates the phases of the moon as explained by a shadow cast by the sun (on the right). The text is in Persian and was written in the late 900s/early 1000s.


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